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2988 Korhonen (1943 EM)
Classification: Main-belt Asteroid          SPK-ID: 2002988
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1233348955404993 5.8524e-08  
a 2.608227362136733 1.6508e-08 au
q 2.286541912881727 1.5335e-07 au
i 14.7312437233277 5.8208e-06 deg
node 100.9132443186767 2.3586e-05 deg
peri 133.6088762977897 3.2589e-05 deg
M 41.57413764403994 2.0676e-05 deg
tp 2457222.820490895527
(2015-Jul-19.32049090)
8.8601e-05 JED
period 1538.5676505254
4.21
1.4607e-05
3.999e-08
d
yr
n .233983861468207 2.2215e-09 deg/d
Q 2.929912811391739 1.8545e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1043  
   data-arc span      30734 days (84.15 yr)  
   first obs. used      1931-05-19  
   last obs. used      2015-07-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .49625  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Sep-02 14:07:29  

Additional Information
 Earth MOID = 1.29592 au 
 Jupiter MOID = 2.17647 au 
 T_jup = 3.354 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 11.7 mag n/a PDS3 (MPC 17267)  
rotation period rot_per 29.494 h n/a LCDB (Rev. 2015-December); Warner et al., 2009 Published Reference List:
[Gross, J. (2003) Minor Planet Bul. 30, 44-46.]
SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

2988 Korhonen (1943 EM)          Discovered 1943-Mar-01 by Oterma, L. at Turku
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1943 EM = 1931 KN = 1951 AS = 1953 TO3 = 1979 WM3 = 1979 YV6 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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